CTT Counter Timer Tachometer – Getting Started

Digital Counter / Timer / Tachometer (CTT Series)
The CTT series from Automation Direct are multi-function digital units. They incorporate a multi-function digital counter, timer and tachometer all within the same unit. This means that you have fewer stock items and the learning curve is minimized. The CCT series are easily configured as a digital counter, timer, combination timer-counter or tachometer.
The two colour LCD display shows present values, setting values and menu parameters during setup. Process control parameters are easily set using the externally accessible DIP switches or the lockable keypad. We will be looking at this versatile multi-fictional device. Let’s get started.

CTT Series – Counter / Timer / TachometerOrdering Information:
Every unit is a counter, timer or tachometer. You select the mode that is required for your application. All units come with a NPN and SPST relay contacts on CTT output 1. Output 2 on the CTT can be ordered as a NPN or SPST relay contact.
CTT-AN = Output 2 NPN
CTT-1C = Output 2 SPST relay contact
The supply voltage can be either 24VDC (-D24) or 100-264VAC (-A120). This gives us a combination of 4 different units to choose.

Wiring
Here are the wiring diagrams for all four units.
The 24DC power supply units side by side. Notice that the only difference is output 2. One is NPN and the other is SPST relay.
The AC power supply can be anywhere from 100 to 240 VAC. Note that the output 2 is the same options as the DC version.

CTT Series Programming
Programming of the CTT Series can be done with DIP switches or the lockable keypad on the unit. You can choose the way your unit will function by looking at the timing chart diagrams for each of the different modes. The following two posts will explain the timing chart diagrams and how to read them.The Secret of Using Timers – VideoThe Secret of Using Counters – Video
Here is an examples of the timing charts for the CTT Series.

Next time we will look at the programming of the timer mode in the CTT.

If you have any questions or need further information please contact me.
Thank you,
Garry

If you’re like most of my readers, you’re committed to learning about technology. Numbering systems used in PLC’s are not difficult to learn and understand. We will walk through the numbering systems used in PLCs. This includes Bits, Decimal, Hexadecimal, ASCII and Floating Point.

To get this free article, subscribe to my free email newsletter.

First Name:Last Name:Email address:

Leave this field empty if you're human:

Use the information to inform other people how numbering systems work. Sign up now.

The ‘Robust Data Logging for Free’ eBook is also available as a free download. The link is included when you subscribe to ACC Automation.